Troubleshooting - Detecto 337 Owner's Manual

The Detecto Physician's Eye-Level Beam Scale is factory-calibrated to within plus or minus
1/4 pound (0.1 kg) accuracy. For the most accurate readings, always use the scale on a
hard, level surface and stand in the center of the scale platform with the weight evenly
distributed. If an error occurs or seems excessive, check the following:
Problem
Zero balance out of
adjustment
Beam does not move
freely
Platform rocks
excessively
Beam does not move
at all during weighing
Scale is out of
calibration
8525-0374-0M Rev A Physician's Scale Owner's Manual
10

TROUBLESHOOTING

Possible Solution
The weighing beam must be balanced so the beam pointer
comes to a rest in the center of the trig loop when both the
small and large poise are set at zero (far-left position). Refer
to Figure 9 and the BALANCING THE SCALE instructions.
Make sure the beam pointer is not touching the side of the trig
loop, impeding its range of travel.
Visually ensure that the linkage is centered and properly
aligned. Occasionally during shipping, the alignment will
become skewed. The linkage must be free floating in order for
the scale to weigh properly. If the scale is slightly tipped to
one side, the linkage can be seen by looking up underneath
the weigh beam headpiece.
Ensure the scale is setting on a level surface. When you push
down on any corner of the platform, you should not feel any
significant rocking.
Small and large poise are set higher than the person's actual
weight. Reset the both poises to a lower or zero weight.
Make sure the draft rod is properly connected and aligned as
shown in Figure 5.
Recalibrate the scale by placing a known weight on the scale
and turning the balance screw until the pointer remains
centered within the trig loop.